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20241016-dtls13-cleanup #8088

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Oct 17, 2024
Merged

20241016-dtls13-cleanup #8088

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fa65da7
analyzer-driven cleanups of --enable-dtls13 --enable-dtls-mtu --enabl…
douzzer Oct 17, 2024
06de22e
api.c:test_wolfSSL_dtls_stateless_maxfrag(): add missing condition (c…
douzzer Oct 17, 2024
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20 changes: 10 additions & 10 deletions src/dtls13.c
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Original file line number Diff line number Diff line change
Expand Up @@ -495,22 +495,25 @@ int Dtls13HashClientHello(const WOLFSSL* ssl, byte* hash, int* hashSz,
wc_HashAlg hashCtx;
int type = wolfSSL_GetHmacType_ex(specs);

if (type < 0)
return type;

header[0] = (byte)client_hello;
c32to24(length, header + 1);

ret = wc_HashInit_ex(&hashCtx, type, ssl->heap, ssl->devId);
ret = wc_HashInit_ex(&hashCtx, (enum wc_HashType)type, ssl->heap, ssl->devId);
if (ret == 0) {
ret = wc_HashUpdate(&hashCtx, type, header, OPAQUE32_LEN);
ret = wc_HashUpdate(&hashCtx, (enum wc_HashType)type, header, OPAQUE32_LEN);
if (ret == 0)
ret = wc_HashUpdate(&hashCtx, type, body, length);
ret = wc_HashUpdate(&hashCtx, (enum wc_HashType)type, body, length);
if (ret == 0)
ret = wc_HashFinal(&hashCtx, type, hash);
ret = wc_HashFinal(&hashCtx, (enum wc_HashType)type, hash);
if (ret == 0) {
*hashSz = wc_HashGetDigestSize(type);
*hashSz = wc_HashGetDigestSize((enum wc_HashType)type);
if (*hashSz < 0)
ret = *hashSz;
}
wc_HashFree(&hashCtx, type);
wc_HashFree(&hashCtx, (enum wc_HashType)type);
}
return ret;
}
Expand Down Expand Up @@ -568,9 +571,6 @@ static int Dtls13SendFragment(WOLFSSL* ssl, byte* output, word16 output_size,
else {
msg = output + recordHeaderLength;

if (length <= recordHeaderLength)
return BUFFER_ERROR;

if (hashOutput) {
ret = Dtls13HashHandshake(ssl, msg, recordLength);
if (ret != 0)
Expand Down Expand Up @@ -1713,7 +1713,7 @@ static int _Dtls13HandshakeRecv(WOLFSSL* ssl, byte* input, word32 size,
isFirst = fragOff == 0;
isComplete = isFirst && fragLength == messageLength;

if (!isComplete && !Dtls13AcceptFragmented(ssl, handshakeType)) {
if (!isComplete && !Dtls13AcceptFragmented(ssl, (enum HandShakeType)handshakeType)) {
#ifdef WOLFSSL_DTLS_CH_FRAG
byte tls13 = 0;
/* check if the first CH fragment contains a valid cookie */
Expand Down
4 changes: 2 additions & 2 deletions src/internal.c
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Expand Up @@ -11471,8 +11471,8 @@ static int GetDtlsRecordHeader(WOLFSSL* ssl, word32* inOutIdx,
if (ssl->options.tls1_3) {
ret = GetDtls13RecordHeader(ssl, inOutIdx, rh, size);
if (ret == 0 ||
ret != WC_NO_ERR_TRACE(SEQUENCE_ERROR) ||
ret != WC_NO_ERR_TRACE(DTLS_CID_ERROR))
((ret != WC_NO_ERR_TRACE(SEQUENCE_ERROR)) &&
(ret != WC_NO_ERR_TRACE(DTLS_CID_ERROR))))
return ret;
}

Expand Down
11 changes: 7 additions & 4 deletions tests/api.c
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Expand Up @@ -87647,6 +87647,7 @@ static void test_AEAD_limit_client(WOLFSSL* ssl)
/* Test the sending limit for AEAD ciphers */
Dtls13GetEpoch(ssl, ssl->dtls13Epoch)->nextSeqNumber = sendLimit;
test_AEAD_seq_num = 1;
XMEMSET(msgBuf, 0, sizeof(msgBuf));
ret = wolfSSL_write(ssl, msgBuf, sizeof(msgBuf));
AssertIntGT(ret, 0);
didReKey = 0;
Expand Down Expand Up @@ -90812,12 +90813,13 @@ static int test_wolfSSL_dtls_stateless_maxfrag(void)
XMEMSET(&test_ctx, 0, sizeof(test_ctx));
ExpectIntEQ(test_memio_setup(&test_ctx, &ctx_c, &ctx_s, &ssl_c, &ssl_s,
wolfDTLSv1_2_client_method, wolfDTLSv1_2_server_method), 0);
ExpectNotNull(ssl_s);
ExpectNotNull(ssl_c2 = wolfSSL_new(ctx_c));
ExpectIntEQ(wolfSSL_UseMaxFragment(ssl_c2, WOLFSSL_MFL_2_8),
WOLFSSL_SUCCESS);
wolfSSL_SetIOWriteCtx(ssl_c2, &test_ctx);
wolfSSL_SetIOReadCtx(ssl_c2, &test_ctx);
if (ssl_s != NULL) {
if (EXPECT_SUCCESS()) {
max_fragment = ssl_s->max_fragment;
}
/* send CH */
Expand Down Expand Up @@ -95173,11 +95175,12 @@ static int test_dtls_frag_ch(void)
/* Limit options to make the CH a fixed length */
/* See wolfSSL_parse_cipher_list for reason why we provide 1.3 AND 1.2
* ciphersuite. This is only necessary when building with OPENSSL_EXTRA. */
ExpectTrue(wolfSSL_set_cipher_list(ssl_c, "TLS13-AES256-GCM-SHA384"
#ifdef OPENSSL_EXTRA
":DHE-RSA-AES256-GCM-SHA384"
ExpectTrue(wolfSSL_set_cipher_list(ssl_c, "TLS13-AES256-GCM-SHA384"
":DHE-RSA-AES256-GCM-SHA384"));
#else
ExpectTrue(wolfSSL_set_cipher_list(ssl_c, "TLS13-AES256-GCM-SHA384"));
#endif
));

/* CH1 */
ExpectIntEQ(wolfSSL_negotiate(ssl_c), -1);
Expand Down
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